During anal sex, just before the man orgasms, he sticks his finger up his own ass then shoves it into the unsuspecting girl's mouth, inducing a violent gag reflex, causing her anus to tightly grip the man's shaft for a magical experience.

Michael thought Jill's asshole was too loose to achieve orgasm, so he decided to give her a great big Norwegian hug. Jill wasn't happy after tasting poop on Micheal's finger.